baber/WOPTO huggingface dataset:
Patent GB-354881-A (GB)
Title: Improvements in and relating to machines for cutting or grinding ovals
IPC: B23Q35/08
Filed: 1930-05-24
Abstract: 354,881. Grinding curved surfaces of mirrors &c. GASS, W. G., Atlas Foundry, Nelson Street, Bolton. May 24, 1930, No. 16003. [Class 60.] A machine for cutting or grinding elliptical forms, especially for mirrors and sheets of glass, comprises a work-carrying member slidable on parallel arms on a circular rotatable member, and engaged by a stationary, but radially adjustable, stud carrying a rotatable block. A grinding-wheel 38 is carried by a head rotatable about its axis and traversable axially of the wheel. This head is set to one side of a transversely adjustable work-carrying head comprising a stationary member 26 round which is rotatably mounted a member 27 with-an external worm wheel 28 engaging a worm 24 slidably mounted on a shaft 22 driven from a pulley 13 through chain and belt drives and bevel gearing 21. The grinding-wheel is adjustable towards or from the work by means of a counterweighted lever 39. Arms 30 on the member 27 have slidably mounted thereon a member 31 engaging a rotatable block 34 on a stud 33 on the fixed member 26, and provided with a mounting 35 to carry a vacuum faceplate for the work, which is thus constrained to move in an elliptical path. The glass &c. may be horizontal or inclined in modifications.
Patent GB-709441-A (GB)
Title: Preparation of hexamethylenediamines
Filed: 1951-07-06
Abstract: Hexamethylenediamines are prepared by reacting adipaldehyde in a liquid reaction medium with a compound of formula <FORM:0709441/IV (b)/1> in which R and R1 are hydrogen or monovalent hydrocarbon radicals, present in a proportion of from 2 to 9.9 mols. per mol. of adipaldehyde, and hydrogen at temperatures in the range 25-150 DEG C. in the presence of a hydrogenation catalyst.  The adipaldehyde may be prepared by the process of Specification 709,450.  Suitable liquids for the reaction medium are methanol, ethanol, isopropanol, tertiary amyl alcohol, benzene and dioxane. Suitable catalysts are nickel, cobalt, iron, palladium and ruthenium and they may be supported, for example, on carbon, silica or alumina.  Suitable nitrogen compounds are, for example, ammonia, methylamine, ethylamine, butylamine, dodecylamine, dimethylamine, methylethylamine, aniline, N-methylaniline, cyclohexylamine and dicyclohexylamine.  In the examples adipaldehyde prepared as a solution in methanol is reacted with ammonia and hydrogen in the presence of nickel to give hexamethylenediamine, which may be isolated as the picrate.
Patent GB-545117-A (GB)
Title: Improvements in methods of dyeing yarns and other materials
IPC: D06P3/00
Filed: 1940-11-06
Abstract: 545,117. Dyeing textiles &c. JOHNSON, G. W. (American Viscose Corporation). Nov. 6, 1940, No. 16153. [Class 15 (ii)] The dyeing of yarns, films, filaments, straws and the like comprising a vinyl polymer, such as polymerized vinyl chloride or a co-polymer of vinyl chloride and vinyl acetate, with a dyestuff in aqueous dispersion is effected in the presence of one or more of the following normally solid organic compounds which have, under the dyeing conditions, a solubility of 2 per cent. or more in the vinyl polymer, namely : diphenyl. naphthalene, phenanthrene, 1- and 2- naphthols, thio-2-naphthol, 2:4-dichloro- and dibromo-1-naphthols, 2-hydroxydiphenyl and its 2<SP>1</SP>- and 41-chloro derivative's, 2-cyclohexylphenol, p-chlorothymol, 2:4- and 2:5-dichloroanilines, 1- and 2-naphthylamines and their N- phenyl derivatives, 2- and 4-aminodiphenyls, desoxybenzoin, fluorenone, 8-hydroxyquinoline, dibenzyl succinate, methyl p-bromobenzoate, diphenyl and dibenzyl phthalates, 1- and 2- naphthyl acetates, phenylglycine ethyl ester, diphenyl and di-o-tolyl carbonates, N:N-diphenylurethane, 2-naphthonitrile, 4-chlorobenzaldehyde, 2:4-dimethoxybenzaldehyde, 4- dimethylaminobenzaldehyde, 2-hydroxyacetophenone, benzophenone and its 4-hydroxy and 4-methoxy derivatives, methyl-2-naphthyl ketone, camphor, benzalacetone, anisalacetone, benzoylacetone, benzalacetophenone, 1-hydroxy-2-acetonaphthone, benzil, diphenyl triketone, dibenzoylmethane, benzhydrol, phenyl benzyl carbinol, 9-fluorenol, #:#<SP>1</SP> diphenoxydiethyl ether, 4-methoxydiphenyl, benzyl-1-naphthyl ether, methyl-2-naphthyl ether, benzoic anhydride, dicyclohexyl phthalate, 2:4:6-tribromophenyl acetate, 2-diphenyl acetate, 1:2-di-benzoyloxy-ethane, glycerol tribenzoate, phenyl and m- and p-cresyl benzoates. The compound may be applied to the yarn &c. before its immersion in the dyebath or may be added to the dyebath. In examples, yarns comprising co-polymers of vinyl chloride and vinyl acetate are dyed (.1) by treatment for' 1 hour with an aqueous suspension at 60‹C. of Cibacete orange 2R or Cibacete scarlet G and 2-naphthol; (2) by similar treatment with a suspension of Celliton red violet RR, Phenacyl navy blue PV, Phenacyl red R, Celutate brilliant blue V, Artisil direct yellow 3GP or Cibacete rubine BS and 4-dimethylaminobenzaldehyde ; (3) by similar treatment with a suspension of Celliton fast pink BA, Calconese orange 3RC, Cibacete violet B, Celutate fast blue GL or Phenacyl red Rand benzophenone ; (4) by similar treatment with a suspension of Cibacete yellow 2RN or 5G, Celliton fast yellow GRA, Celliton fast blue FFRS, Celliton discharge violet B or 5R, Phenacyl red R, Cibacete violet B, Artisil direct yellow 3GP or Celliton fast brown 5RA and 2-hydroxydiphenyl ; (5) by treatment for ¢ hour with an aqueous liquor at 60‹C. containing 2-hydroxydiphenyl and then for 1 hour in a dyebath at 60‹C. containing Artisil direct yellow 3GP, Cibacete violet B, Phenacyl red R or Celliton fast brown 5RA. Specification 427,194 is referred to.
Patent GB-379002-A (GB)
Title: Improvements in mechanical casting of metals
IPC: B22D17/26
Filed: 1931-06-04
Abstract: 379,002. Casting-machines. DESCHAMPS, J. M. and DESCHAMPS, M. J., 4, Clairvaux Road, Rose Bay, Sydney, Australia. June 4, 1931, No. 16197. [Class 83 (i).] Moulds.-Metals having a high melting-point, such as alloy steel, are cast in a mould having a stationary mould member and another member movable relative to the first by mechanically operated reciprocable means or manually. The stationary member 10 and movable member 14 are carried by platens 11, 15. Moulds are formed in one or both of the members, and the outlines of the mould cavities are provided with a facing boss or flange to ensure a close fit, small vents in the flanges permitting the escape of gases liberated in the casting. The platen 15 moves on guides 19 and interengaging pins 17 and sockets 18 ensure alignment of the mould members. The member 14 is moved away from the member 10 or brought into and held in close-fitting contact with it by a plunger 20 attached centrally to the platen 15 and operated by hydraulic means 21. A forming-block 28, mounted on a hand lever 29 provides for cutting off the gate. After retaining the casting in the mould for an interval predetermined by practical tests, the mould is opened and the casting delivered by a chute 24. If binding occurs the casting is freed by manually operated dowels 31 slidably mounted in the mould members. The platens 11, 15 have passages 26 for water, oil or hot gases supplied by a jet 27.
Patent GB-331998-A (GB)
Title: Improvements in, and relating to, electrically welded metal tubing
IPC: B23K11/06
Filed: 1929-05-27
Abstract: 331,998. McLoughlin, H. F. May 27, 1929. Welding.-In an elec tric welding machine the electrodes are so arranged and connected to an A.C supply that current flows simultaneously trans versely to and paralle with length of pressure closed seam. Two pairs of electrodes c, c', d, d' are employed and are connected to a three-phase supply pipe e<1>, e<2>, e<3>. Pressure rollers f<1> - - f<6> are arranged as shown. The pairs of electrodes are adjustable vertically by means of screws j and are connected to the secondaries of the transformer h through mercury cups i and conductors A. B, C. The distance between the pairs may be varied by means of a screw k. The pressure exerted by the rollers f<1> - - f<6> may be varied by screws m.
Patent GB-769837-A (GB)
Title: Xylophone construction
IPC: G10D13/08
Filed: 1955-06-06
Abstract: 769,837. Xylophones. ZIMMERMAN, H. June 6, 1955, No. 16211/55. Class 88 (2). [Also in Group XV] The one-piece frame 1 of a xylophone has studs 17 extending down beyond its walls 11, 15, which pass through the sounding board 18, slots 16 in these walls, through which the end portions of the tone bars 22, 23 pass, being closed by the board 18. A fibrous cord 21 is threaded through holes in the board 18 and supports the tone bars when the instrument is in use. The identity of the notes produced may be indicated on the top wall 13 if desired.
Patent GB-334189-A (GB)
Title: Manufacture of aliphatic compounds
IPC: C07C51/12
Filed: 1929-05-27
Abstract: 334,189. British Celanese, Ltd., Green, S. J., and Handley, R. May 27, 1929. Acids; esters.-The reaction gases or vapours obtained in the preparation of oxygenated organic compounds by circulating mixtures of carbon monoxide (or carbon monoxide and hydrogen) with vapours of aliphatic alcohols, esters, or ethers over heated catalysts, are freed from undesired condensation products, for instance paraffin hydrocarbons, by means of absorbents such as absorbent charcoal, active carbon, or silica gel, which are capable of absorbing paraffin hydrocarbons or other gaseous or vaporous substances. As examples of suitable gas mixtures which may be employed in the process, carbon monoxide (or carbon monoxide and hydrogen), together with methanol, methylacetate, methylformate, or dimethylether are mentioned. An inorganic catalyst such as described in Specification 283,989, particularly phosphoric acid, may advantageously be used. An example is given of the preparation of acetic acid in which carbon monoxide is mixed with the vapour of methyl alcohol or aqueous methyl alcohol and pumped through a heat exchanger into the reaction chamber containing, for example, phosphoric acid. The products are passed through the heat exchanger to a condenser provided with a receiver in which uncondensed gases are separated from the liquid products. The gases are then passed through one or more vessels or towers filled with absorbent or active carbon or silica gel, and returned again to the gas circulating pump.
Patent GB-1440037-A (GB)
Title: Electron multipliers
IPC: H01J43/24
Filed: 1974-04-11
Abstract: 1440037 Glass compositions; coating with glass MULLARD Ltd 11 April 1974 16314/74 Addition to 1417643 Heading C1M [Also in Division H1] Channel multiplier fabrication includes etching conical channels in a photosensitive glass of composition in wt. percentages SiO 2  81À5; Li 2 O 12À0; K 2 O 3À5 and Al 2 O 3  3À0. A coating glass in wt. percentages of B 2 O 3  22À2; PbO 55À0 and Bi 2 O 3  22À8 and with expansion characteristics matching that of the channel glass for coating the channels was melted at 800‹ C. in an alumina crucible and ground to approx. 10 Ám. particle size. Subsequent reduction in hydrogen produces a slightly conductive surface. Powder is settled from an acetone suspension producing a glaze after slow heating to 590‹ C. The film thickness may be 10 to 15 Ám. on a surface with 20 Ám. wide etched pits.
Patent GB-1572322-A (GB)
Title: Electrolysis of aqueous solution of sodium chloride
IPC: C01D3/14
Filed: 1978-04-25
Abstract: An electrolysis of an aqueous solution of sodium chloride is carried out by employing a fluorinated cation exchange membrane having an ion-exchange capacity of 0.8 to 2.0 meq/g dry polymer and having carboxylic acid groups as functional groups and maintaining a concentration of an aqueous solution of sodium hydroxide in a cathode compartment in a range of 20 to 45 wt. % and maintaining a calcium concentration in the aqueous solution of sodium chloride to lower than 0.08 mg/liter. The purification of the aqueous solution of sodium chloride to reduce the calcium concentration is carried out in a system comprising the first and second chelate ion-exchange towers which are connected through a detector for detecting impurities in the aqueous solution.
Patent GB-120444-A (GB)
Title: Improvements in Electric Furnace.
Inventor: BAUR CARL HANS VOM
IPC: H05B7/02
Filed: 1917-11-10
Abstract: 120,444. Baur, C. H. vom. Nov. 10, 1917. Electrode furnaces.-Two-phase current is supplied to three pendent electrodes C, C<1>, C<2>, Fig. 2, arranged in a furnace of oval shape in plan such that the distance of each electrode from the walls is proportional to the current traversing it. As shown, the walls comprise circular portions of radii 1 : #2 :1, preferably joined by tangential portions. Each outer electrode preferably enters the furnace through a partly spherical block F, Fig. 4, seated in the roof so as to allow of movement over the surface of the charge. The blocks are provided with handles F<2> and asbestos packing G. Arcs are maintained between the electrodes and the slag, and not directly between electrodes. The furnace has charging and working doors J, a spout H, and a curved base unprovided with electrodes.
Patent GB-718655-A (GB)
Title: Double-acting portable hand pump and deck socket
IPC: B63B13/00
Filed: 1952-07-01
Abstract: 718,655. Portable hand pumps. CLARE, E. June 23, 1953 [July 1, 1952], No. 16527/52. Class 102 (1). [Also in Group XXXIII A double-acting portable hand-pump and deck socket fitting comprises a barrel A, Fig. 1, and tubes B, C, secured between head and foot castings D, E. The casting E is formed with coarse pitch screw threads for attachment to one or more deck sockets F having a hinged cover H for sealing the socket when not in use and mounts a suction valve G for the lower part of the barrel. The casting D mounts a delivery valve L for the lower part of the barrel and suction and delivery valves K and M, Fig. 2, for the upper part of the barrel.
Patent GB-377371-A (GB)
Title: Improvements in means for supporting earthenware during firing
IPC: F27D5/00
Filed: 1931-06-06
Abstract: 377,371. Pottery manufacture. BAILEY, C., 7, Dimsdale Parade, Wolstanton, Staffordshire. June 6, 1931, No. 16550. [Class 87 (i).] Pottery is supported during firing in a perforated castiron tray C having steel uprights braced together with horizontal bands D. The lifting bands may carry steel lifting brackets E.
Patent GB-1494160-A (GB)
Title: Multilayer pressure vessel
IPC: B01J3/04
Filed: 1976-04-23
Abstract: 1494160 Multilayer pressure vessel P G PIMSHTEIN, M M SHEL, E R KHISMATULIN, E G BORSUK, A N NOVIKOV, V M MAKAROV, B G ZISELMAN, A V KURAMZHIN, V G USENKO, N K GLOBIN and V IVANTSOV 23 April 1976 16566/76 Heading B1X A multilayer pressure vessel comprises a cylindrical portion formed by a pipe encompassed by layers of helically wound strip, the helices of adjacent layers being of opposite hand ,the pitch of each helix being 0.2 to 2.2 times the inside diameter of the pipe, all the adjacent turns of strip being welded to one another along helical lines only in the external layer, the ends of each strip being welded to respective end parts of the vessel.
Patent GB-221590-A (GB)
Title: Improvements in rope supporting rollers
IPC: B66B15/02
Filed: 1923-06-26
Abstract: 221,590. Andrews, G. T. June 26, 1923. Guide and supporting pulleys; flexible pulleys or rollers for supporting haulage &c. ropes in mines &c. A rubber tread is provided of a thickness which is not less than one quarter of the tread diameter. In preferred forms, the pulley comprises a number of rubber discs 4, of a thickness substantially less than the radius, which, together with larger rubber flange discs 5 supported by metal stiffening plates 6, are threaded upon a spindle 2 with journal ends 3, and are axially compressed by metal plate nuts 7 screwed on to threaded portions 8 of the spindle. Tie rods 9 passes through the assemblage and riveted at their ends to the plate nuts 7 resist shearing and unscrewing. The discs 4 may be formed with interengaging annular shoulders and grooves to distribute radial stresses. The interior portion of the discs as indicated at 11, may be of inferior rubber.
Patent GB-572650-A (GB)
Title: Improvements in or relating to power-operated brakes
IPC: B66D5/00
Filed: 1943-10-11
Abstract: 572,650. Spring and weight applied brakes. ELLISTON, E. R. Oct. 11, 1943, No. 16647. [Class 103 (i)] In brakes comprising a pair of brake shoes that are applied by a spring or weight and released by a power-unit, the power-unit is carried on both shoes and preferably in such a manner that its weight tends to move the shoes away from the drum. In one form, Fig. 1, a magnet 2 is mounted on a sole plate 5 pivoted at 9 to one shoe 6 and bearing on a roller 11 on the other shoe 6a. The plunger 3 of the magnet is connected by a lever 13 pivoted at 12 to the plate 5, to a rod 1 which engages the shoe 6a and carries a spring 16 abutting on shoe 6 and on adjusting nuts 17. When the magnet is de-energized, the shoes are applied to the drum by the weight of the plunger 3 assisted by the spring 16 and when the plunger is returned the shoes are moved apart by the weight of the magnet acting through the sole plate. In Fig. 2, the sole plate 23 extends only between the shoes, the lever 25 pivoted at 26 to the shoe 6 is connected by a link 21 to the shoe 6a and the application spring 16 is carried by a separate rod 22. In this case, the shoes are moved apart by the lever 25 and link 21 assisted by the weight of the magnet. The brake may be applied by a weight instead of a spring, and for this purpose the lever 13 or 25 may be extended to the left-hand and carry a weight adjustable in position thereon, or a rod arranged similarly to the rod 22 but without the spring may be connected at its right-hand end to the upwardly cranked arm of a second lever pivoted on the lever 6, the outwardly-extending horizontal arm of this lever carrying a weight. The power-unit may instead be an electro-hydraulic thruster.
Patent GB-905866-A (GB)
Title: Switching magnets for electro magnetic switching devices
Inventor: KLETT EMANUEL
IPC: H01F7/08
Filed: 1961-05-08
Abstract: 905,866. Electromagnetic switches. LICENTIA PATENT - VERWALTUNGS - G.m.b.H. May 8, 1961, No. 16650/61. Drawings to Specification. Class 38 (5). At least part of the surface of a silicon containing soft iron magnet and armature of an electromagnetic switching device is protected against corrosion by a layer of chromium incorporated by diffusion. The pole heads on the armature and the magnet are protected by such a layer of about 0.3 mm. thickness and having a minimum chrome content of between 12 to 13%.
Patent GB-694945-A (GB)
Title: Improvements in or relating to rotary tool machines
IPC: B28D1/04
Filed: 1949-06-23
Abstract: 694,945. Grinding machines; sawing stone. FRIEDMANN, Z. Sept. 25, 1950 [June 23, 1949], No. 16688/49. Classes 60 and 124. A machine for sawing, grinding, shaping or polishing stone or other hard material has a carriage 33 adapted to run on rails 21 and shaped so that a part 34 of its upper surface is about level with the upper surfaces of the rails 1, an electric motor 12 being located over the part 34 with its axis parallel to that of a rotary tool 10. A gear train (not shown) connects the motor and tool which are mounted on a vertically-adjustable slide 16, the slideway being bolted at 19 to the carriage. The ends of one or each side of the carriage may be connected to a strengthening rib.
Patent GB-1138973-A (GB)
Title: Phenol-formaldehyde-aliphatic amine condensation products
IPC: C08G8/28
Filed: 1966-04-15
Abstract: 1,138,973. Oxyalkylated phenylolmethylated amines. UNION CARBIDE CORP. 15 April, 1966 [16 April, 1965], No. 16715/66. Heading C2C. [Also in Division C3] The invention comprises adducts, with epoxides, of the ternary condensation product of a mixture of a phenol, CH 2 O and a primary aliphatic amine in molar ratios of phenol: (CH 2 O + amine group) of 0À63À3: 1 and OH 2 O: amine group of 0À75-3: 1.
Patent GB-923365-A (GB)
Title: Pentafluorophenyl compounds
Inventor: BELF LEON JERZY
IPC: C07C275/54
Filed: 1960-05-12
Abstract: The invention comprises: (a) compounds of the general formulae H2N.CX.NH.C6F5  (I) wherein X represents oxygen or sulphur, and R.CO.NH.CO.NH2  (II) wherein R represents C6F5-, C6F5CH2-, C6F5CH2CH2- or <FORM:0923365/IV(a)/1> ; (b) the preparation of compounds (I) by reacting 2,3,4,5,6-pentafluoroaniline with cyanate or thiocyanate ions under acid conditions; and (c) the preparation of compounds (II) by reacting urea with the appropriate acid chloride or bromide. The products are intended for use as sedatives and hypnotics.
Patent GB-167842-A (GB)
Abstract: 167,842. Wardill, H., and Wardill, H. E. May 15, 1920. Two-stroke-cycle engines. - An annular pump piston d surrounds an extension of the working cylinder in which is an inlet port m and an exhaust port n. The pump piston is connected by a pair of rods to eccentrics on the crank shaft. Charges are admitted to the pump cylinder through a piston - controlled port l.
Patent GB-692755-A (GB)
Title: Improvements in the production of beta-chlorethyl-ethylene oxide and butadiene monoxide
IPC: C07D303/08
Filed: 1951-07-16
Abstract: Beta-chlorethyl-ethylene oxide and butadiene monoxide are produced by reacting 1.2.4-butanetriol, its cyclic ether 3-hydroxy-tetrahydrofurane, or its 4-monoalkylethers with hydrogen chloride and treating the resulting 1.4-dichlorbutanol (2) with caustic alkali.  To produce b -chlorethyl-ethylene oxide from the 1.4-dichlorbutanol (2) it is preferable to react it with the calculated amount of aqueous caustic alkali at temperatures from about 0 DEG  to 50 DEG  C.  To obtain butadiene monoxide it is necessary to split off a further molecule of HCl and this is done by using solid powdered alkali hydroxide at a temperature in the range 100-150 DEG  C., while excluding water.  The reaction proceeds as follows <FORM:0692755/IV (b)/1> The two stages may be carried out in one operation by allowing the 1.4-dichlorbutanol (2) to act at a temperature above 100 DEG  C. on solid caustic potash, for example. In the examples: (a) 1,2,4-butanetriol is treated with hydrogen chloride to give 1,4-dichlorbutanol-(2) which is treated with potassium hydroxide to give p-chlorethyl ethylene oxide which on further treatment with potassium hydroxide gives butadiene monoxide; (b) a mixture of 3-hydroxytetrahydrofurane and glacial acetic acid is treated with gaseous hydrogen chloride; the 1,4-dichlorbutanol-(2) formed is reacted with potassium hydroxide to give beta-chlorethylethylene oxide and butadiene monoxide.
Patent GB-557677-A (GB)
Title: Production of ferro-alloys substantially free from gangue materials
IPC: C21C7/00
Filed: 1942-11-28
Abstract: 557,677. Alloys; granulating. CHROMIUM MINING & SMELTING CORPORATION, Ltd., Nov. 28, 1942, No. 16938. Convention date, Jan. 9. [Classes 82 (i) and 82 (ii)] In the production of iron alloys, e.g. highcarbon ferro-chrome, the mixture of metal and slag leaving the furnace is finely divided or granulated, thereby forming a mixture of particles of metal and slag which is afterwards treated for the separation of metal and slag. Granulation may be effected by a liquid or gas, e.g. water, air, or steam, particularly by causing the molten stream to pass downwards through two wide vertically-spaced transverse streams of water. The mixed particles may be separated by gravity concentration and may be ground before or after concentration. The slag product may be further treated by gravity concentration to recover particles of unreduced ore which may be returned to the furnace.